The presence of a critical risk for Down’s syndrome screening is not serious. The critical risk indicates that the baby may or may not have a genetic problem. Non-invasive DNA testing can be done. Non-invasive DNA testing is done by taking the serum of the pregnant woman and analyzing it according to the week of pregnancy, age, weight and height to determine and evaluate the specific condition of the fetus, and the concentration of human chorionic gonadotropin, free estriol and alpha-fetoprotein in the serum of the pregnant woman. If a non-invasive DNA test shows a problem, an amniocentesis will be performed as the final result. If the amniocentesis suggests that there is no problem with the fetus, the baby can be born. If the amniocentesis does not pass, the pregnancy should be terminated promptly.